Limits
Valid value range
Limit value
-2 147 483 648 (-2
31
)
to +2 147 483 646 (2
31
-2)
Upper count limit
+2 147 483 647 (2
31
-1)
6.12 Counter - Additional functions
The following additional functions may be set via the parametrization of the counter:
n
Gate function
–
The gate function is used to start , stop and interrupt a counting function.
n
Latch function:
–
An edge 0-1 at the digital Latch input stores the current
counter value
in the latch
register.
n
Comparison
–
You may set a
comparison value
that de-activates a digital output respectively
releases a process interrupt depending on the
counter value
.
n
Hysteresis:
–
By specifying a
hysteresis
you can prevent e.g. a high output toggling and/or trig-
gering interrupts, when the value of an encoder signal varies to the
comparison
value
.
The illustration shows how the additional functions influence the counting behavior. The
following pages describe these additional functions in detail:
Overview
Schematic structure
VIPA System 300S
+
Deployment I/O periphery
Counter - Additional functions
HB140 | CPU | 314-6CF23 | en | 19-01
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